Many Americans spend time worrying about paying their bills. A survey by Fleishman-Hilliard Research for MassMutual discovered that 60% of Americans with kids say that paying bills is a major concern. This proportion compares to 52% of Americans without kids. Suppose 850 Americans with kids and 910 without kids were contacted for this study. Use these data to construct a 95% confidence interval to estimate the difference in population proportions between Americans with kids and Americans without kids on this issue.
Answer to relevant QuestionsTest the following hypotheses by using the given sample information and α = .01. Assume the populations are normally distributed.H0: σ21 = σ22 .......Ha: σ21 < σ22n1 = 10, ....... n2 = 11, .......s21 = 562, ...According to the General Accounting Office of the U.S. government, the average age of a male federal worker is 43.6 years and that of a male worker in the nonfederal sector is 37.3 years. Is there any difference in the ...Test the following hypotheses by using the given data and alpha equal to .05.H0: p1 - p2 = 0Ha: p1 - p2 ≠ 0Sample 1 .. Sample 2n1 = 783 .... n2 = 896x1 = 345 .... x2 = 421A national grocery store chain wants to test the difference in the average weight of turkeys sold in Detroit and the average weight of turkeys sold in Charlotte. According to the chain’s researcher, a random sample of20 ...Executives often spend so many hours in meetings that they have relatively little time to manage their individual areas of operation. What is the difference in mean time spent in meetings by executives of the aerospace ...
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